debut css et js déroulement

web/themes/custom/quartiers_de_demain/package.json

@@ -3,6 +3,7 @@
   "version": "1.0.0",
   "main": "index.js",
   "dependencies": {
+    "@types/slick-carousel": "^1.6.40",
     "acorn": "^6.4.2",
     "ansi-colors": "^1.1.0",
     "ansi-cyan": "^0.1.1",
@@ -353,6 +354,8 @@
     "sigmund": "^1.0.1",
     "signal-exit": "^3.0.7",
     "slash": "^5.1.0",
+    "slick": "^1.12.2",
+    "slick-carousel": "^1.8.1",
     "sort-keys": "^1.1.2",
     "sort-keys-length": "^1.0.1",
     "source-map": "^0.5.7",